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Engineering News

Continent origins revealed in search for missing niobium — ScienceDaily

In his free time last summer, Rice University geoscientist Ming Tang made a habit of comparing the niobium content in various rocks in a global minerals database. What he found was worth skipping a few nights out with friends. In a paper published this month by Nature Communications, Tang, Rice petrologist Cin-Ty Lee and colleagues offered an answer to one of Earth science’s fundamental questions: Where do continents form? “If our conclusions are correct, every piece of land that we…

Contextualizing Airbnb by Building Knowledge Graph – Airbnb Engineering & Data Science – Medium

The Infrastructure The diagram below illustrates the architecture of the knowledge graph service as of today at Airbnb. It can be divided into 3 components: graph storage, graph query API, and storage mutator. In this section, we will get into the details for each of them. Architecture of the knowledge graph infrastructure Graph Storage The first thing we built for the knowledge graph infrastructure is a graph storage module. We adopted an in-house relational data store as the underlying database,…

Bridging Offline and Nearline Computations with Apache Calcite

Figure 1. The traditional lambda architecture  This is a great idea, but a major pain point of the Lambda architecture is that it requires users to develop two different code bases for carrying out the same logic: batch scripts, often in declarative languages like SQL, and nearline code, often in procedural languages like Java. Many problems arise due to this duplication—developers have to do twice the work, and it is painful to make sure the two code bases are consistent…

Microstructures can be moved by light and temperature — ScienceDaily

Laser-based 3D printing can already be used today to produce any structure on a micrometer scale. However, for many applications, especially in biomedicine, it would be advantageous if the printed objects were not rigid but switchable. Researchers at the Karlsruhe Institute of Technology (KIT) have now been able to print microstructures that change shape under the influence of temperature or light. The results were published in the journal Nature Communications. 3D printing has established itself as a technology with countless…

Introducing AresDB: Uber’s GPU-Powered Open Source, Real-time Analytics Engine

At Uber, real-time analytics allow us to attain business insights and operational efficiency, enabling us to make data-driven decisions to improve experiences on the Uber platform. For example, our operations team relies on data to monitor the market health and spot potential issues on our platform; software powered by machine learning models leverages data to predict rider supply and driver demand; and data scientists use data to improve machine learning models for better forecasting. In the past, we have utilized…

Smart, self-powered knee implants could reduce number of knee replacement surgeries

Smart knee implants may soon be a reality thanks to research conducted by a team including faculty at Binghamton University, State University of New York. Knee replacement surgery is the most common joint replacement procedure, with the number of surgeries increasing every year. Many of those surgeries are done to replace an older implant or one that has worn out. Increasingly, this surgery is being performed for younger, more active patients who are faced with a dilemma. When they undergo…

Gas cylinder explosion in India’s premier government lab kills 1 person, wounds 3 more – The Safety Zone

Posted By Jyllian Kemsley on Dec 31, 2018 in Accidents, Featured, Government laboratories | The interior of the building housing the IISc Department of Aerospace Engineering, photographed in 2011. Credit: Mohammadulhaque. Contributed by K. V. Venkatasubramanian, special to C&EN. A gas cylinder blast in a laboratory at the Indian Institute of Science (IISc) on Dec. 5 killed one researcher and left three others grievously wounded. The researchers were working in the Laboratory for Hypersonic and Shock Wave…

Iron oxide nanoparticles in silicone show promise as a skin replacement material — ScienceDaily

A new type of sensor could lead to artificial skin that someday helps burn victims ‘feel’ and safeguards the rest of us, University of Connecticut researchers suggest in a paper in Advanced Materials. Our skin’s ability to perceive pressure, heat, cold, and vibration is a critical safety function that most people take for granted. But burn victims, those with prosthetic limbs, and others who have lost skin sensitivity for one reason or another, can’t take it for granted, and often…

Shelter provides support to MU computing, IT student orgs

Sean Huggans and Troy Gaines (center) of Shelter Insurance met with EECS and IT faculty (L-R) Syed Kamrul Islam, Michael Jurczyk, Brian Maurer and Sean Goggins to donate funds to support several student organizations. Getting involved with student organizations not only helps companies recruit high-quality interns and full-time hires, but also helps faculty and students adjust to the needs of an ever-changing workforce. That’s why Shelter Insurance recently made a donation to support three Computer Science/Information Technology student organizations at…

How Uber Leverages Applied Behavioral Science at Scale

On the Uber Labs team, our mission is to leverage insights and methodologies from behavioral science to build programs and products that are intuitive and enjoyable for customers. Our group of scientists have PhDs in fields including psychology, marketing, and cognitive science, with domain knowledge in topics including decision making, motivation, and learning, methodological capabilities in experimental and quasi-experimental design, and statistical prowess in areas such as hierarchical modeling and causal inference approaches. With our domain expertise, we provide insight…